Lens mounting



March 20, 1928. 1,663,402

J. ENGEL LENS MOUNTING Filed Oct. 9, 1925 Patented Mar. 20, 1928.

UNITED STATES PATENT OFFICE.

JOSEPH ENGEL, or BROOKLYN, NEW YoRK, ASSIGNOR T0 SUPERLOID MANUFACTUR- ING COMPANY, INCORPORATED, or BROOKLYN, NEW YoRK, A CORPORATION on NEW YORK.

LENS MOUNTING.

Application filed October 9, 1925. Serial N 0. 61,438.

This invention relates generally to eyeglass or spectacle structure, and particularly to means for connecting lens frames with each other.

The primary object of the invention is to provide means of simplified and improved nature for connecting the lens rims and which will permit of a comparatively wide range of adjustment of the rims whereby to compensate for variations in pupillary distances.

A further object of the invention is to provide a rim connector of simple construction and which will prove durable in practice, enabling the rims to be flexible or movable with respect to each other yet which maintains the rims when once adjusted in proper relative spaced positions.

A still further object is to provide a connector of the character mentioned adapt-able particularly to eyeglass and spectacle frames formed of composition material, such as zylonite, horn, celluloid, or other plastic materials or metals which enables the bridge or connector to correspond in color or tint with the rims and temples, and which will prove artistic as well as eflicient in practice.

A still further object is to provide a connector of the character stated wherein the same is capable of production by simplified and improved processes, and which may be assembled expeditiously and without the exercise of unusual skill or knowledge.

With these objects in view, together with others which will appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts, all as will be described more fully hereinafter, illustrated in the drawing, and particularly pointed out in the claims.

In the drawings:

Fig. 1 is an elevation of eyeglasses of conventional form and showing the lens rims connected in accordance with the invention,

Fig. 2 is an enlarged fragmentary sectional view illustrating the manner of connecting the bridge member with one of the frames,

Fig. 3 is a transverse sectional view taken through the bridge member, and

Fig. at is a view similar to Fig. 1 and illustrating the invention as associated with spec tacles.

Referring now more particularly to the drawings, Sand 6 represent the, lens frames metal 8, in the presentinstance square or rectangular in cross section, and the extremities of this bar areinserted and anchored w thin recesses or openings 9 formedin-the bosses 7. These ends may be anchoredby the use of cement or any other expedient well known in the art. t 1 The bar or wire 8 possesses sufiicient pliabihty to permit of the same being adjusted or flexedfto bow the glasses together or apart as pupillary adjustments may require. This bar or wire is covered substantia-lly from end to end with a flexible covering represented at 10. This covering constitutes what may be termed a cable, and compr ses a tubular member having a spiral or helical cut therein throughout its length.

This cut extends entirely through the body of the member to the bore thereof, so that a high degree of flexibility is obtained with outrdanger of breaking or cracking the tubular member. The member 10 is therefore enabled to readily conform to the curvature and shape ofthe wire core 8 without an apparent break in the outer surface thereof. The tubing thus constructed will as sume the appearance of a spirally or helically wound member tightly fitting upon the bar or wire 8, yet it possesses advantages not present in such a member, as the stretching or straining of the material incident to the winding process is obviated.

The aforesaid ends of the bosses 7 are recessed or socketed as shown more particularly in Fig. 2 of the drawings, to receive theextremities of the cable 10, and these extremities are firmly anchored in the respective bosses with the aid of glue or opticians cement.

By constructing the eyeglass bridge in the manner stated, it is apparent that the lens rims will be securely attached together, yet suflicient flexibility or pliability of the connector is present to enable variations in the distances between the frames to be made to compensate for differences in pupillary distances. The cable fits snugly and compactly upon the connecting wire, and in addition to reinforcing the same, presents a neatappearanceand assists in maintaining symmetry in the eyeglass construction as well as to lend rigidity to the connector.

The cable may be formed of any pre-- ferred material, such as zylonite, horn, shell, celluloid, or other plastic materials or metal,

well known in the optical trade, and the color or tint of the same may correspond with that of the lens frames or may vary, as

required or desired.

It is apparent that from this construction the strong and durable rim connector is provided, and one which will prove highly satisfactory both in its means of operation as well as its appearance.

Having thus described my invention, I claim:

1. In a lens mounting, a pair of rims formed of non-metallic material, a pliable wire connecting said rims, and a pliable cableiupon said wire extending from end to end of the latter and secured at its ends to said rims, said cable formed of non-metallic material.

2.1n a lens mounting, a pair of lens frames formed of non-metallic material a n n I a u pliable wire connecting sald frames, a pliable tube formed of non-metallic material enclosing said wire from end to end and havwithin said sockets.

ing a spiral cut. coextensivetherewith and the said tube secured at its ends to said frames.

3. In a lens mounting, a pair of'lens frames formed of non-metallic material and having sockets therein, a wire connecting said frames and extending into said sockets, and a helical member enclosing said wire and anchored'at its ends in said sockets, said 5.111 a lens mounting, a pair of lens frames formed of non-metallic material, projections integral with said frames having sockets in the ends thereof, a wire connecting said frames and extending into said sockets, and a tubular member of non-metallic 'material enclosing said flexible member and anchored at its extremities within said sockets, said-tubular member having a spiral cut therein extending throughout the length of said tubular member.

In testimony whereof I affix mysignature.

' JOSEPH ENGEL. 

